mirror of
https://github.com/juanfont/headscale.git
synced 2024-12-26 22:25:52 -05:00
803 lines
19 KiB
Go
803 lines
19 KiB
Go
package headscale
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"log"
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"net/http"
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"net/netip"
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"os"
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"path"
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"strings"
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"sync"
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"testing"
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"time"
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v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
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"github.com/ory/dockertest/v3"
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"github.com/ory/dockertest/v3/docker"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/suite"
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"tailscale.com/client/tailscale/apitype"
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"tailscale.com/ipn/ipnstate"
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)
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type IntegrationTestSuite struct {
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suite.Suite
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stats *suite.SuiteInformation
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pool dockertest.Pool
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network dockertest.Network
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headscale dockertest.Resource
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saveLogs bool
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namespaces map[string]TestNamespace
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joinWaitGroup sync.WaitGroup
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}
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func TestIntegrationGeneralTestSuite(t *testing.T) {
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saveLogs, err := GetEnvBool("HEADSCALE_INTEGRATION_SAVE_LOG")
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if err != nil {
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saveLogs = false
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}
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s := new(IntegrationTestSuite)
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s.namespaces = map[string]TestNamespace{
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"thisspace": {
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count: 10,
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tailscales: make(map[string]dockertest.Resource),
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},
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"otherspace": {
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count: 2,
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tailscales: make(map[string]dockertest.Resource),
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},
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}
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s.saveLogs = saveLogs
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suite.Run(t, s)
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// HandleStats, which allows us to check if we passed and save logs
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// is called after TearDown, so we cannot tear down containers before
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// we have potentially saved the logs.
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if s.saveLogs {
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for _, scales := range s.namespaces {
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for _, tailscale := range scales.tailscales {
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if err := s.pool.Purge(&tailscale); err != nil {
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log.Printf("Could not purge resource: %s\n", err)
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}
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}
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}
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if !s.stats.Passed() {
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err := s.saveLog(&s.headscale, "test_output")
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if err != nil {
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log.Printf("Could not save log: %s\n", err)
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}
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}
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if err := s.pool.Purge(&s.headscale); err != nil {
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log.Printf("Could not purge resource: %s\n", err)
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}
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if err := s.network.Close(); err != nil {
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log.Printf("Could not close network: %s\n", err)
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}
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}
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}
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func (s *IntegrationTestSuite) saveLog(
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resource *dockertest.Resource,
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basePath string,
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) error {
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err := os.MkdirAll(basePath, os.ModePerm)
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if err != nil {
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return err
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}
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var stdout bytes.Buffer
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var stderr bytes.Buffer
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err = s.pool.Client.Logs(
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docker.LogsOptions{
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Context: context.TODO(),
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Container: resource.Container.ID,
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OutputStream: &stdout,
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ErrorStream: &stderr,
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Tail: "all",
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RawTerminal: false,
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Stdout: true,
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Stderr: true,
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Follow: false,
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Timestamps: false,
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},
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)
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if err != nil {
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return err
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}
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log.Printf("Saving logs for %s to %s\n", resource.Container.Name, basePath)
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err = os.WriteFile(
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path.Join(basePath, resource.Container.Name+".stdout.log"),
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[]byte(stdout.String()),
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0o644,
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)
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if err != nil {
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return err
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}
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err = os.WriteFile(
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path.Join(basePath, resource.Container.Name+".stderr.log"),
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[]byte(stdout.String()),
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0o644,
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)
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if err != nil {
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return err
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}
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return nil
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}
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func (s *IntegrationTestSuite) Join(
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endpoint, key, hostname string,
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tailscale dockertest.Resource,
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) {
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defer s.joinWaitGroup.Done()
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command := []string{
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"tailscale",
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"up",
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"-login-server",
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endpoint,
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"--authkey",
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key,
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"--hostname",
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hostname,
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}
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log.Println("Join command:", command)
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log.Printf("Running join command for %s\n", hostname)
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_, _, err := ExecuteCommand(
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&tailscale,
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command,
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[]string{},
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)
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assert.Nil(s.T(), err)
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log.Printf("%s joined\n", hostname)
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}
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func (s *IntegrationTestSuite) tailscaleContainer(
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namespace, identifier, version string,
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) (string, *dockertest.Resource) {
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tailscaleBuildOptions := getDockerBuildOptions(version)
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hostname := fmt.Sprintf(
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"%s-tailscale-%s-%s",
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namespace,
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strings.Replace(version, ".", "-", -1),
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identifier,
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)
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tailscaleOptions := &dockertest.RunOptions{
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Name: hostname,
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Networks: []*dockertest.Network{&s.network},
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Cmd: []string{
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"tailscaled", "--tun=tsdev",
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},
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}
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err := s.pool.RemoveContainerByName(hostname)
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if err != nil {
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s.FailNow(
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fmt.Sprintf(
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"Could not remove existing container before building test: %s",
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err,
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),
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"",
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)
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}
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pts, err := s.pool.BuildAndRunWithBuildOptions(
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tailscaleBuildOptions,
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tailscaleOptions,
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DockerRestartPolicy,
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DockerAllowLocalIPv6,
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DockerAllowNetworkAdministration,
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)
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if err != nil {
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log.Fatalf("Could not start tailscale container version %s: %s", version, err)
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}
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log.Printf("Created %s container\n", hostname)
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return hostname, pts
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}
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func (s *IntegrationTestSuite) SetupSuite() {
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var err error
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app = Headscale{
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dbType: "sqlite3",
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dbString: "integration_test_db.sqlite3",
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}
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if ppool, err := dockertest.NewPool(""); err == nil {
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s.pool = *ppool
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} else {
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s.FailNow(fmt.Sprintf("Could not connect to docker: %s", err), "")
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}
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network, err := GetFirstOrCreateNetwork(&s.pool, headscaleNetwork)
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if err != nil {
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s.FailNow(fmt.Sprintf("Failed to create or get network: %s", err), "")
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}
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s.network = network
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headscaleBuildOptions := &dockertest.BuildOptions{
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Dockerfile: "Dockerfile",
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ContextDir: ".",
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}
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currentPath, err := os.Getwd()
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if err != nil {
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s.FailNow(fmt.Sprintf("Could not determine current path: %s", err), "")
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}
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headscaleOptions := &dockertest.RunOptions{
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Name: headscaleHostname,
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Mounts: []string{
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fmt.Sprintf("%s/integration_test/etc:/etc/headscale", currentPath),
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},
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ExposedPorts: []string{"8080/tcp"},
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PortBindings: map[docker.Port][]docker.PortBinding{
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"8080/tcp": {{HostPort: "8080"}},
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},
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Networks: []*dockertest.Network{&s.network},
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Cmd: []string{"headscale", "serve"},
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}
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err = s.pool.RemoveContainerByName(headscaleHostname)
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if err != nil {
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s.FailNow(
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fmt.Sprintf(
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"Could not remove existing container before building test: %s",
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err,
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),
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"",
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)
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}
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log.Println("Creating headscale container for core integration tests")
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if pheadscale, err := s.pool.BuildAndRunWithBuildOptions(headscaleBuildOptions, headscaleOptions, DockerRestartPolicy); err == nil {
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s.headscale = *pheadscale
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} else {
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s.FailNow(fmt.Sprintf("Could not start headscale container for core integration tests: %s", err), "")
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}
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log.Println("Created headscale container for core integration tests")
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log.Println("Creating tailscale containers for core integration tests")
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for namespace, scales := range s.namespaces {
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for i := 0; i < scales.count; i++ {
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version := tailscaleVersions[i%len(tailscaleVersions)]
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hostname, container := s.tailscaleContainer(
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namespace,
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fmt.Sprint(i),
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version,
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)
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scales.tailscales[hostname] = *container
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}
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}
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log.Println("Waiting for headscale to be ready for core integration tests")
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hostEndpoint := fmt.Sprintf("%s:%s",
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s.headscale.GetIPInNetwork(&s.network),
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s.headscale.GetPort("8080/tcp"))
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if err := s.pool.Retry(func() error {
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url := fmt.Sprintf("http://%s/health", hostEndpoint)
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resp, err := http.Get(url)
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if err != nil {
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fmt.Printf("headscale for core integration test is not ready: %s\n", err)
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return err
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}
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("status code not OK")
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}
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return nil
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}); err != nil {
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// TODO(kradalby): If we cannot access headscale, or any other fatal error during
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// test setup, we need to abort and tear down. However, testify does not seem to
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// support that at the moment:
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// https://github.com/stretchr/testify/issues/849
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return // fmt.Errorf("Could not connect to headscale: %s", err)
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}
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log.Println("headscale container is ready for core integration tests")
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for namespace, scales := range s.namespaces {
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log.Printf("Creating headscale namespace: %s\n", namespace)
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result, _, err := ExecuteCommand(
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&s.headscale,
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[]string{"headscale", "namespaces", "create", namespace},
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[]string{},
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)
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log.Println("headscale create namespace result: ", result)
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assert.Nil(s.T(), err)
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log.Printf("Creating pre auth key for %s\n", namespace)
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preAuthResult, _, err := ExecuteCommand(
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&s.headscale,
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[]string{
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"headscale",
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"--namespace",
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namespace,
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"preauthkeys",
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"create",
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"--reusable",
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"--expiration",
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"24h",
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"--output",
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"json",
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},
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[]string{"LOG_LEVEL=error"},
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)
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assert.Nil(s.T(), err)
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var preAuthKey v1.PreAuthKey
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err = json.Unmarshal([]byte(preAuthResult), &preAuthKey)
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assert.Nil(s.T(), err)
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assert.True(s.T(), preAuthKey.Reusable)
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headscaleEndpoint := "http://headscale:8080"
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log.Printf(
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"Joining tailscale containers to headscale at %s\n",
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headscaleEndpoint,
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)
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for hostname, tailscale := range scales.tailscales {
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s.joinWaitGroup.Add(1)
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go s.Join(headscaleEndpoint, preAuthKey.Key, hostname, tailscale)
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}
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s.joinWaitGroup.Wait()
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}
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// The nodes need a bit of time to get their updated maps from headscale
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// TODO: See if we can have a more deterministic wait here.
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time.Sleep(60 * time.Second)
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}
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func (s *IntegrationTestSuite) TearDownSuite() {
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if !s.saveLogs {
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for _, scales := range s.namespaces {
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for _, tailscale := range scales.tailscales {
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if err := s.pool.Purge(&tailscale); err != nil {
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log.Printf("Could not purge resource: %s\n", err)
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}
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}
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}
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if err := s.pool.Purge(&s.headscale); err != nil {
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log.Printf("Could not purge resource: %s\n", err)
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}
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if err := s.network.Close(); err != nil {
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log.Printf("Could not close network: %s\n", err)
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}
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}
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}
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func (s *IntegrationTestSuite) HandleStats(
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suiteName string,
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stats *suite.SuiteInformation,
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) {
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s.stats = stats
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}
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func (s *IntegrationTestSuite) TestListNodes() {
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for namespace, scales := range s.namespaces {
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log.Println("Listing nodes")
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result, _, err := ExecuteCommand(
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&s.headscale,
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[]string{"headscale", "--namespace", namespace, "nodes", "list"},
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[]string{},
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)
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assert.Nil(s.T(), err)
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log.Printf("List nodes: \n%s\n", result)
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// Chck that the correct count of host is present in node list
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lines := strings.Split(result, "\n")
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assert.Equal(s.T(), len(scales.tailscales), len(lines)-2)
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for hostname := range scales.tailscales {
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assert.Contains(s.T(), result, hostname)
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}
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}
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}
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func (s *IntegrationTestSuite) TestGetIpAddresses() {
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for _, scales := range s.namespaces {
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ips, err := getIPs(scales.tailscales)
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assert.Nil(s.T(), err)
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for hostname := range scales.tailscales {
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ips := ips[hostname]
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for _, ip := range ips {
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s.T().Run(hostname, func(t *testing.T) {
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assert.NotNil(t, ip)
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log.Printf("IP for %s: %s\n", hostname, ip)
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// c.Assert(ip.Valid(), check.IsTrue)
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assert.True(t, ip.Is4() || ip.Is6())
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switch {
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case ip.Is4():
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assert.True(t, IpPrefix4.Contains(ip))
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case ip.Is6():
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assert.True(t, IpPrefix6.Contains(ip))
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}
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})
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}
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}
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}
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}
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// TODO(kradalby): fix this test
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// We need some way to import ipnstate.Status from multiple go packages.
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// Currently it will only work with 1.18.x since that is the last
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// version we have in go.mod
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// func (s *IntegrationTestSuite) TestStatus() {
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// for _, scales := range s.namespaces {
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// ips, err := getIPs(scales.tailscales)
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// assert.Nil(s.T(), err)
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//
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// for hostname, tailscale := range scales.tailscales {
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// s.T().Run(hostname, func(t *testing.T) {
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// command := []string{"tailscale", "status", "--json"}
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//
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// log.Printf("Getting status for %s\n", hostname)
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// result, err := ExecuteCommand(
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// &tailscale,
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// command,
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// []string{},
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// )
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// assert.Nil(t, err)
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//
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// var status ipnstate.Status
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// err = json.Unmarshal([]byte(result), &status)
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// assert.Nil(s.T(), err)
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//
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// // TODO(kradalby): Replace this check with peer length of SAME namespace
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// // Check if we have as many nodes in status
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// // as we have IPs/tailscales
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// // lines := strings.Split(result, "\n")
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// // assert.Equal(t, len(ips), len(lines)-1)
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// // assert.Equal(t, len(scales.tailscales), len(lines)-1)
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//
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// peerIps := getIPsfromIPNstate(status)
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//
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// // Check that all hosts is present in all hosts status
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// for ipHostname, ip := range ips {
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// if hostname != ipHostname {
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// assert.Contains(t, peerIps, ip)
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// }
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// }
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// })
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// }
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// }
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// }
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func getIPsfromIPNstate(status ipnstate.Status) []netip.Addr {
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ips := make([]netip.Addr, 0)
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for _, peer := range status.Peer {
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ips = append(ips, peer.TailscaleIPs...)
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}
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return ips
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}
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// TODO: Adopt test for cross communication between namespaces
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func (s *IntegrationTestSuite) TestPingAllPeersByAddress() {
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for _, scales := range s.namespaces {
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ips, err := getIPs(scales.tailscales)
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assert.Nil(s.T(), err)
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for hostname, tailscale := range scales.tailscales {
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for peername, peerIPs := range ips {
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for i, ip := range peerIPs {
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// We currently cant ping ourselves, so skip that.
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if peername == hostname {
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continue
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}
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s.T().
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Run(fmt.Sprintf("%s-%s-%d", hostname, peername, i), func(t *testing.T) {
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// We are only interested in "direct ping" which means what we
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// might need a couple of more attempts before reaching the node.
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command := []string{
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"tailscale", "ping",
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"--timeout=1s",
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"--c=10",
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"--until-direct=true",
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ip.String(),
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}
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log.Printf(
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"Pinging from %s to %s (%s)\n",
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hostname,
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peername,
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ip,
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)
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result, _, err := ExecuteCommand(
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&tailscale,
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command,
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[]string{},
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)
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assert.Nil(t, err)
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log.Printf("Result for %s: %s\n", hostname, result)
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assert.Contains(t, result, "pong")
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})
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}
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}
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}
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}
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}
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func (s *IntegrationTestSuite) TestTailDrop() {
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for _, scales := range s.namespaces {
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ips, err := getIPs(scales.tailscales)
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assert.Nil(s.T(), err)
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|
|
retry := func(times int, sleepInverval time.Duration, doWork func() error) (err error) {
|
|
for attempts := 0; attempts < times; attempts++ {
|
|
err = doWork()
|
|
if err == nil {
|
|
return
|
|
}
|
|
time.Sleep(sleepInverval)
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
for hostname, tailscale := range scales.tailscales {
|
|
command := []string{"touch", fmt.Sprintf("/tmp/file_from_%s", hostname)}
|
|
_, _, err := ExecuteCommand(
|
|
&tailscale,
|
|
command,
|
|
[]string{},
|
|
)
|
|
assert.Nil(s.T(), err)
|
|
for peername := range ips {
|
|
if peername == hostname {
|
|
continue
|
|
}
|
|
|
|
var ip4 netip.Addr
|
|
for _, ip := range ips[peername] {
|
|
if ip.Is4() {
|
|
ip4 = ip
|
|
break
|
|
}
|
|
}
|
|
if ip4.IsUnspecified() {
|
|
panic("no ipv4 address found")
|
|
}
|
|
|
|
s.T().Run(fmt.Sprintf("%s-%s", hostname, peername), func(t *testing.T) {
|
|
command := []string{
|
|
"tailscale", "file", "cp",
|
|
fmt.Sprintf("/tmp/file_from_%s", hostname),
|
|
fmt.Sprintf("%s:", ip4),
|
|
}
|
|
err := retry(10, 1*time.Second, func() error {
|
|
log.Printf(
|
|
"Sending file from %s to %s\n",
|
|
hostname,
|
|
peername,
|
|
)
|
|
_, _, err := ExecuteCommand(
|
|
&tailscale,
|
|
command,
|
|
[]string{},
|
|
ExecuteCommandTimeout(60*time.Second),
|
|
)
|
|
return err
|
|
})
|
|
|
|
assert.Nil(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
for hostname, tailscale := range scales.tailscales {
|
|
command := []string{
|
|
"tailscale", "file",
|
|
"get",
|
|
"/tmp/",
|
|
}
|
|
_, _, err := ExecuteCommand(
|
|
&tailscale,
|
|
command,
|
|
[]string{},
|
|
)
|
|
assert.Nil(s.T(), err)
|
|
for peername, ip := range ips {
|
|
if peername == hostname {
|
|
continue
|
|
}
|
|
s.T().Run(fmt.Sprintf("%s-%s", hostname, peername), func(t *testing.T) {
|
|
command := []string{
|
|
"ls",
|
|
fmt.Sprintf("/tmp/file_from_%s", peername),
|
|
}
|
|
log.Printf(
|
|
"Checking file in %s (%s) from %s (%s)\n",
|
|
hostname,
|
|
ips[hostname][1],
|
|
peername,
|
|
ip,
|
|
)
|
|
result, _, err := ExecuteCommand(
|
|
&tailscale,
|
|
command,
|
|
[]string{},
|
|
)
|
|
assert.Nil(t, err)
|
|
log.Printf("Result for %s: %s\n", peername, result)
|
|
assert.Equal(
|
|
t,
|
|
fmt.Sprintf("/tmp/file_from_%s\n", peername),
|
|
result,
|
|
)
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (s *IntegrationTestSuite) TestPingAllPeersByHostname() {
|
|
hostnames, err := getMagicFQDN(&s.headscale)
|
|
assert.Nil(s.T(), err)
|
|
|
|
log.Printf("Resolved hostnames: %#v", hostnames)
|
|
for _, scales := range s.namespaces {
|
|
for hostname, tailscale := range scales.tailscales {
|
|
for _, peername := range hostnames {
|
|
if strings.Contains(peername, hostname) {
|
|
continue
|
|
}
|
|
|
|
s.T().Run(fmt.Sprintf("%s-%s", hostname, peername), func(t *testing.T) {
|
|
command := []string{
|
|
"tailscale", "ping",
|
|
"--timeout=10s",
|
|
"--c=20",
|
|
"--until-direct=true",
|
|
peername,
|
|
}
|
|
|
|
log.Printf(
|
|
"Pinging using hostname from %s to %s\n",
|
|
hostname,
|
|
peername,
|
|
)
|
|
result, _, err := ExecuteCommand(
|
|
&tailscale,
|
|
command,
|
|
[]string{},
|
|
)
|
|
assert.Nil(t, err)
|
|
log.Printf("Result for %s: %s\n", hostname, result)
|
|
assert.Contains(t, result, "pong")
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (s *IntegrationTestSuite) TestMagicDNS() {
|
|
hostnames, err := getMagicFQDN(&s.headscale)
|
|
assert.Nil(s.T(), err)
|
|
|
|
log.Printf("Resolved hostnames: %#v", hostnames)
|
|
|
|
for _, scales := range s.namespaces {
|
|
ips, err := getIPs(scales.tailscales)
|
|
assert.Nil(s.T(), err)
|
|
|
|
retry := func(times int, sleepInverval time.Duration, doWork func() (string, error)) (result string, err error) {
|
|
for attempts := 0; attempts < times; attempts++ {
|
|
result, err = doWork()
|
|
if err == nil {
|
|
return
|
|
}
|
|
time.Sleep(sleepInverval)
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
for hostname, tailscale := range scales.tailscales {
|
|
for _, peername := range hostnames {
|
|
if strings.Contains(peername, hostname) {
|
|
continue
|
|
}
|
|
|
|
s.T().Run(fmt.Sprintf("%s-%s", hostname, peername), func(t *testing.T) {
|
|
command := []string{
|
|
"tailscale", "ip", peername,
|
|
}
|
|
result, err := retry(10, 1*time.Second, func() (string, error) {
|
|
log.Printf(
|
|
"Resolving name %s from %s\n",
|
|
peername,
|
|
hostname,
|
|
)
|
|
result, _, err := ExecuteCommand(
|
|
&tailscale,
|
|
command,
|
|
[]string{},
|
|
)
|
|
return result, err
|
|
})
|
|
|
|
assert.Nil(t, err)
|
|
log.Printf("Result for %s: %s\n", hostname, result)
|
|
|
|
peerBaseName := peername[:len(peername)-MachineGivenNameHashLength-1]
|
|
expectedAddresses := ips[peerBaseName]
|
|
for _, ip := range expectedAddresses {
|
|
assert.Contains(t, result, ip.String())
|
|
}
|
|
})
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func getAPIURLs(
|
|
tailscales map[string]dockertest.Resource,
|
|
) (map[netip.Addr]string, error) {
|
|
fts := make(map[netip.Addr]string)
|
|
for _, tailscale := range tailscales {
|
|
command := []string{
|
|
"curl",
|
|
"--unix-socket",
|
|
"/run/tailscale/tailscaled.sock",
|
|
"http://localhost/localapi/v0/file-targets",
|
|
}
|
|
result, _, err := ExecuteCommand(
|
|
&tailscale,
|
|
command,
|
|
[]string{},
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var pft []apitype.FileTarget
|
|
if err := json.Unmarshal([]byte(result), &pft); err != nil {
|
|
return nil, fmt.Errorf("invalid JSON: %w", err)
|
|
}
|
|
for _, ft := range pft {
|
|
n := ft.Node
|
|
for _, a := range n.Addresses { // just add all the addresses
|
|
if _, ok := fts[a.Addr()]; !ok {
|
|
if ft.PeerAPIURL == "" {
|
|
return nil, errors.New("api url is empty")
|
|
}
|
|
fts[a.Addr()] = ft.PeerAPIURL
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return fts, nil
|
|
}
|